Calibration card for photoluminescent oxygen sensors
First Claim
1. A calibration tool for use in combination with a photoluminescent oxygen-sensitive working probe and an analytical instrument capable of reading the working probe from which the concentration of oxygen in a sample communicating with the working probe can be determined, wherein the working probe comprises an oxygen-sensitive photoluminescent dye embedded within an oxygen-permeable carrier matrix, the calibration tool effective for achieving two-point calibration of the analytical instrument and comprising:
- (a) a first mass of a first solid state composition comprising an oxygen-sensitive photoluminescent dye that is the same as the probe dye, embedded within an oxygen-permeable carrier matrix that is the same as the probe carrier matrix, wherein the first composition has a first sensitivity to oxygen, and(b) a second mass of a second solid state composition comprising an oxygen-sensitive photoluminescent dye that is the same as the dye in the first mass, embedded within a carrier matrix that is different from the carrier matrix in the first mass, wherein the second composition has a known second sensitivity to oxygen that is less than the first sensitivity to oxygen.
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Accused Products
Abstract
A calibration tool for use in combination with a photoluminescent oxygen-sensitive working probe and an analytical instrument capable of reading the working probe. The calibration tool is effective for achieving two-point calibration of the analytical instrument, and includes at least first and second solid state compositions having different sensitivities to oxygen. The first composition is an oxygen-sensitive photoluminescent dye that is the same as that in the working probe, embedded within an oxygen-permeable carrier matrix that is the same as that in the working probe. The second composition is an oxygen-sensitive photoluminescent dye that is the same as that in the first composition, embedded within a carrier matrix that is different from that in the first composition. The oxygen sensitivity of the second composition is less than the oxygen sensitivity of the first composition.
37 Citations
27 Claims
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1. A calibration tool for use in combination with a photoluminescent oxygen-sensitive working probe and an analytical instrument capable of reading the working probe from which the concentration of oxygen in a sample communicating with the working probe can be determined, wherein the working probe comprises an oxygen-sensitive photoluminescent dye embedded within an oxygen-permeable carrier matrix, the calibration tool effective for achieving two-point calibration of the analytical instrument and comprising:
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(a) a first mass of a first solid state composition comprising an oxygen-sensitive photoluminescent dye that is the same as the probe dye, embedded within an oxygen-permeable carrier matrix that is the same as the probe carrier matrix, wherein the first composition has a first sensitivity to oxygen, and (b) a second mass of a second solid state composition comprising an oxygen-sensitive photoluminescent dye that is the same as the dye in the first mass, embedded within a carrier matrix that is different from the carrier matrix in the first mass, wherein the second composition has a known second sensitivity to oxygen that is less than the first sensitivity to oxygen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification